First round was about iOS,. It was 2 hour long interview. He asked only ios . Interviewer was good guy. Round 2. Interviewer asked about design image loading library and one question was about longest commen increasing subsequence. It was also 2 hour long interview.

So the process was. 1st screening round. 2nd Take home assignment. 3rd Interview. 4th There was no clarity. My experience with Take Home Assignment. They will give you a fancy User Interface to design . I completed the assignment and submitted it and got a call after few days saying as follows :- Some Bla Bla Bla talks. Then hey, Our panel reviewed the assignment and they didn't like the design. Your code and everything was good but they didn't liked the design. Then I asked can you tell me what they didn't liked in the design like Animation, Views etc. He was like they just didn't liked. He asked me to resubmit and I clarified that I am not gonna waste a single minute on this company. Stay away. The way they are reviewing the assignment is not worth the time. The problem is not about rejection it's about not respecting other people's time.